Abstract: The present invention is directed to track locking systems for model railroads of the type in which separate sections of track are removably connected to form a desired closed pattern over which a model train will travel. The track sections include electrically conductive rails for supporting and guiding the model train thereon, and for providing electrical energy from a source for driving the train. Individual track bed sections connected to each other are joined at two laterally offset positions to enhance the stability of the sections removably locked together. The locking elements on the respective track sections joined together are oriented at substantially right angles to the direction of the rails to further enhance the stability and integrity of the joined track sections. A secure connection between locked track sections assures a positive engagement between electrical connectors to provide a completed electrical circuit when the track sections are joined in the desired closed pattern.

Abstract: A cylindrical toy having a first and second half each defining a semi-cylindrical body. Each of the halves has secured to its inner surface a plurality of substantially semi-circular flat plates which define a spiral passage when the halves are connected. The cylindrical halves have a bottom portion and the bottom portion of one half includes a bottom guide disk. The second half includes a reinforcing plate which is spaced from and disposed parallel to the bottom portion of the second half to form a space which receives the guide disk of the first half in order to accurately position the two halves with respect to each other prior to their being connected together.

Abstract: A toy comprising a hollow cylindricl body having top, bottom and side portions, a centrally disposed spiral passage, and at least one spherical element which can move along said passage as the toy is handled. The toy can be assembled from two semi-cylindrical halves and means are provided for easily aligning the halves prior to final assembly. The toy may be used in combination with rings, the first of which is adapted to receive the cylindrical toy and the second of which is adapted to receive the toy and the first ring.

Abstract: A puzzle toy is provided comprising a plurality of pieces which can be easily gripped and manipulated by a young child and which can be assembled and disassembled into various structural combinations. The puzzle comprises pieces of various sizes having an aperture therein for fitting around a post upstanding from the base. The pieces are so designed so as to allow them to be placed randomly on the post and by manipulating and jogging the pieces, the puzzle solver may order the pieces in size order about the post.

Abstract: An infant's toy with a hollow ball having openings disposed about its surface and having a freely movable insert trapped within the hollow ball, said insert provided with a pair of pivotally connected stems with a cage structure disposed at the end of each stem, each cage structure containing at least one loosely confined ball. The cage structures are readily movable in and out of the openings of the hollow ball but the insert is restrained from being removed from the hollow ball.